From: Vincenzo Frascino <vincenzo.frascino@arm.com>
To: Andrey Konovalov <andreyknvl@google.com>,
Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>,
Dmitry Vyukov <dvyukov@google.com>,
Andrey Ryabinin <aryabinin@virtuozzo.com>,
Alexander Potapenko <glider@google.com>,
Marco Elver <elver@google.com>,
Evgenii Stepanov <eugenis@google.com>,
Branislav Rankov <Branislav.Rankov@arm.com>,
Kevin Brodsky <kevin.brodsky@arm.com>,
Andrew Morton <akpm@linux-foundation.org>,
kasan-dev <kasan-dev@googlegroups.com>,
Linux ARM <linux-arm-kernel@lists.infradead.org>,
Linux Memory Management List <linux-mm@kvack.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v8 30/43] arm64: kasan: Allow enabling in-kernel MTE
Date: Fri, 6 Nov 2020 11:11:21 +0000 [thread overview]
Message-ID: <c8a28305-eac6-54a6-3071-9768a9774a5c@arm.com> (raw)
In-Reply-To: <CAAeHK+wOyPYP=BkhratZwR=NKyzLWzwTTbyGtqQ75tJyM1D=rg@mail.gmail.com>
Hi Catalin,
On 11/5/20 6:09 PM, Andrey Konovalov wrote:
>> Ah, I got there eventually in patch 38. Too many indirections ;) (I'm
>> sure we could have trimmed them down a bit, hw_init_tags ==
>> arch_init_tags == mte_init_tags).
> The idea with these indirections was to make hw_tags.c to not directly
> call MTE stuff and abstract away the underlying memory tagging
> implementation. We won't know for sure how fitting these abstractions
> are before we add another memory tagging implementation though :)
>
I agree with Andrey, because in future the sparc architecture might want to
support HW KASAN hence keeping a generic infrastructure adds some value.
--
Regards,
Vincenzo
next prev parent reply other threads:[~2020-11-06 11:08 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <cover.1604531793.git.andreyknvl@google.com>
[not found] ` <5e3c76cac4b161fe39e3fc8ace614400bc2fb5b1.1604531793.git.andreyknvl@google.com>
2020-11-05 11:16 ` [PATCH v8 30/43] arm64: kasan: Allow enabling in-kernel MTE Vincenzo Frascino
2020-11-05 11:35 ` Andrey Konovalov
2020-11-05 11:42 ` Vincenzo Frascino
2020-11-05 12:14 ` Andrey Konovalov
2020-11-05 14:17 ` Vincenzo Frascino
2020-11-05 17:27 ` Andrey Konovalov
2020-11-05 17:25 ` Catalin Marinas
2020-11-05 17:29 ` Andrey Konovalov
2020-11-05 17:39 ` Catalin Marinas
2020-11-05 18:09 ` Andrey Konovalov
2020-11-06 11:11 ` Vincenzo Frascino [this message]
[not found] ` <fc9e96c022a147120b67056525362abb43b2a0ce.1604531793.git.andreyknvl@google.com>
2020-11-05 15:59 ` [PATCH v8 28/43] arm64: mte: Reset the page tag in page->flags Catalin Marinas
2020-11-06 11:46 ` Vincenzo Frascino
[not found] ` <eb6ecc9ca7d4dfa653fce0012bd1651e157638e8.1604531793.git.andreyknvl@google.com>
2020-11-05 15:59 ` [PATCH v8 17/43] kasan, arm64: move initialization message Catalin Marinas
[not found] ` <f931d074bccbdf96ad91a34392d009fece081f59.1604531793.git.andreyknvl@google.com>
2020-11-05 16:00 ` [PATCH v8 18/43] kasan, arm64: rename kasan_init_tags and mark as __init Catalin Marinas
[not found] ` <a540ab7b9e3b908e0f4cd94c963a0cc6bb4e7d3f.1604531793.git.andreyknvl@google.com>
2020-11-05 16:57 ` [PATCH v8 29/43] arm64: mte: Add in-kernel tag fault handler Catalin Marinas
[not found] ` <5d9ece04df8e9d60e347a2f6f96b8c52316bfe66.1604531793.git.andreyknvl@google.com>
2020-11-05 17:30 ` [PATCH v8 32/43] arm64: mte: Switch GCR_EL1 in kernel entry and exit Catalin Marinas
2020-11-05 17:33 ` Andrey Konovalov
2020-11-05 17:42 ` Catalin Marinas
[not found] ` <12faf1f7dc2d3f672f856e141dd9542e8a7cc7c1.1604531793.git.andreyknvl@google.com>
2020-11-05 17:32 ` [PATCH v8 37/43] kasan, arm64: expand CONFIG_KASAN checks Catalin Marinas
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=c8a28305-eac6-54a6-3071-9768a9774a5c@arm.com \
--to=vincenzo.frascino@arm.com \
--cc=Branislav.Rankov@arm.com \
--cc=akpm@linux-foundation.org \
--cc=andreyknvl@google.com \
--cc=aryabinin@virtuozzo.com \
--cc=catalin.marinas@arm.com \
--cc=dvyukov@google.com \
--cc=elver@google.com \
--cc=eugenis@google.com \
--cc=glider@google.com \
--cc=kasan-dev@googlegroups.com \
--cc=kevin.brodsky@arm.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=will.deacon@arm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).